# ALL the combinations of n digit combo
def nDigitCombinations(n):
	try:
		npow = 10**n
		numbers=[]
		for code in range(npow):
			code=str(code).zfill(n)
			numbers.append(code)
	except:
		# handle all other exceptions
		pass    
	return(numbers)

# An alternate solution:
# from itertools import product
# from string import digits
# list("".join(x) for x in product(digits, repeat=n))
